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                ## 第2章 **輪軸** ![](https://img.kancloud.cn/39/f3/39f37afda0849d648a7f135c0b83dc3a_3537x2510.png) <div align="center"> <a name="lunzhoulingjiantu"></a> <br>圖 2?1輪軸零件圖 </div> 本章旨在通過構建[圖 2?1](#lunzhoulingjiantu)所示軸零件的三維模型,并以此為基礎展示利用布局空間生成三維模型的主視圖的過程,使學習者進一步理解三維模型與視圖之間的一一對應關系,同時學會應用視圖生方法來驗證模型的正確性。通過本章的學習,讀者將會了解并掌握布局空間的生成視圖的方法和步驟、圖幅和比例的國家標準。通過拓展練習將進一步理解,同一模型的構建方法也是多種多樣的。
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